Four male suspects accused of involvement in the murder of Kim Jong Nam, the estranged half-brother of North Korean leader Kim Jong Un, were identified for the first time in a Malaysian court on Thursday (Oct 12).

Wan Azirul Nizam added that Jong-Nam's original passport, bearing the name Kim-Chol, was handed over to the North Korean embassy and that he was present when a copy of the passport was made by the police. Witnesses testified that he immediately sought medical help at the airport but died in an ambulance on the way to the hospital.

Separately, Indonesian suspect Siti Aisyah was seen meeting with another man also wearing a cap at an airport cafe just before the attack was carried out in a crowded departure terminal of the Kuala Lumpur airport on Feb. 13.

A woman identified in court as Vietnamese suspect Doan Thi Huong approaches Kim at the check-in counter and clasps both hands on his face from behind.

Prosecutors contend the women knew they were handling poison, and scientists who testified earlier said VX could be removed safely by careful hand-washing.

The men's faces, however, cannot be seen clearly. She walked swiftly to a restroom, keeping her hands partially raised and away from her body. The court was told that Mr Chang had also smeared the oily substance on her hands.

The investigator did not give more details about the four men during his testimony, but Prosecutor Wan Shaharuddin Wan Ladin told the Associated Press outside the court that the four were believed to be North Koreans. Most of the videos appeared to show the women before, during and after the attack on Kim.

According to the AP report, police said Chang was in fact Hong Song Hak and James was also known as Ri Ji U. The latter was one of three North Koreans identified by Malaysian police as persons sought for questioning in the murder probe.

Their defence lawyers have said Huong and Aisyah were duped by suspected North Korean agents into believing they were playing a harmless prank for a TV show. He arrived in the country on Feb 6. James had her go to malls, hotels, and airports and would film her as she rubbed oil or pepper sauce on strangers, paying Aisyah between $100 and $200 per prank.

Huong and Aisyah have pleaded not guilty to murder charges that carry a mandatory death sentence if they are convicted.

James later introduced Aisyah to a man called Chang, who said he was the producer of Chinese video prank shows.